使用 Pickle 在 Python 中进行套接字编程

Question

我在 python 中使用了 pickle 函数来解决套接字编程问题。但是我在服务器上收到的输出被打印为“< main .ProcessData instance at 0x7fbacba37f38>”，而不是发送的内容。

服务器端和客户端代码如下：

服务器

import socket, pickle

class ProcessData:
    print "Server is Listening....." 


print "Server is Listening....."
HOST = 'localhost'
PORT = 50007
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((HOST, PORT))
s.listen(1)
conn, addr = s.accept()
print 'Connected by', addr

data = conn.recv(4096)
data_variable = pickle.loads(data)
conn.close()
print data_variable
print 'Data received from client'

客户

import socket, pickle

class ProcessData:
    print 'ABCDEFGHIJK'



HOST = 'localhost'
PORT = 50007
# Create a socket connection.
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((HOST, PORT))

# Create an instance of ProcessData() to send to server.
variable = ProcessData()
# Pickle the object and send it to the server
data_string = pickle.dumps(variable)
s.send(data_string)

s.close()
print 'Data Sent to Server'

我得到以下输出：

服务器正在侦听..... 服务器正在侦听..... 连接者 ('127.0.0.1', 34726) < main .ProcessData 实例位于 0x7f8e2dfaaf80> 从客户端接收的数据

但我必须得到 ABCDEFGHIJ。我应该怎么办？

Answer 1

目前尚不清楚为什么在class声明中包含 print 语句，但是将数据放在 print 语句中，类声明肯定不是您想要的。

您正在正确地酸洗、发送和接收对象，但您的对象没有执行任何操作。

您可能想要的是某个具有共享数据类型的模块，然后客户端和服务器可以与该类型进行通信。

processdata.py我用以下内容创建：

class ProcessData:
    def __init__(self, data= 'ABCDEFGHIJK'):
        self.data = data
    def __str__(self): return self.data

然后修改你的代码：

客户

import socket, pickle
from processdata import ProcessData

HOST = 'localhost'
PORT = 50007
# Create a socket connection.
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((HOST, PORT))

# Create an instance of ProcessData() to send to server.
variable = ProcessData()
# Pickle the object and send it to the server
data_string = pickle.dumps(variable)
s.send(data_string)

s.close()
print 'Data Sent to Server'

服务器

import socket, pickle

print "Server is Listening....."
HOST = 'localhost'
PORT = 50007
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((HOST, PORT))
s.listen(1)
conn, addr = s.accept()
print 'Connected by', addr

data = conn.recv(4096)
data_variable = pickle.loads(data)
conn.close()
print data_variable
print 'Data received from client'

然后我得到

Server is Listening.....
Connected by ('127.0.0.1', 50941)
ABCDEFGHIJK
Data received from client